Fit Type B:  Fit the mass peak for the signal region definition
Obtain the error on the signal region definition from that fit:
Mean: 3.09312
Sigma:0.0148464
Norm: 10882.4
Signal fraction: 0.888678+/-0.00187257
The Pt cut is: 4<= pt < 5
The fitted value of tau:       0.0480231+/-0.00152802
The fitted value of Lambda+:   0.0281284+/-0.0020372
The fitted value of Lambda-:   0.0236222+/-0.00209099
The fitted value of LambdaSym: 0.066+/-0.255934
The fitted value of F+:        0.134309+/-0.00854731
The fitted value of F-:        0.105463+/-0.00742261
The fitted value of FSym:      0.0205301+/-0.0027923
The fitted value of Scale:     0.984585+/-0.00832569
The fitted value of alpha:     0.886667+/-0.0018425
The fitted value of Bfrac:     0.140135+/-0.00454135